Performance Overview

Improve throttle response, acceleration, and overall drivability with the aFe Sprint Booster Power Converter. Modern vehicles use an Electronic Control Module (ECM) that reads the amount of pedal pressure and translates it into vehicle motion. However, the Electronic Throttle Control (ETC) module of this system usually has delayed responses that result in slow acceleration and sluggish driving. The aFe Sprint Booster Power Converter is an easy to install add-on device that plugs into the OE connector near the accelerator pedal. Upon activation, this product will remove throttle response delay, giving you a more responsive and crisper driving experience. Installation of this power converter requires no cutting of wires or welds and it will work for both manual and automatic transmissions. This booster system gives you 3 Acceleration Modes with 36 Acceleration Programs, 18 for Manual and 18 for Automatic transmissions. The aFe Sprint Booster Power Converters will not affect your other systems like electronic fuel injection and ABS. What's more, this product also features a unique Valet mode which limits acceleration by 55%, 65%, or 75%. It can be activated via a 3-digit pin and can ensure that anyone driving is capped at a certain speed.

Key Features

• Brand: aFe Power
• Part number: 77-16801
• Product type: Sprint Booster Power Converter
• Designed for the compatible vehicle applications listed on this page

Vehicle Fitment

• 2019 Subaru Ascent, Note: Base, Limited, Premium, Touring; 2.4L
• 2020 Subaru Ascent, Note: Base, Limited, Premium, Touring; 2.4L
• 2021 Subaru Ascent, Note: Base, Limited, Premium, Touring; 2.4L
• 2022 Subaru Ascent, Note: Base, Limited, Onyx Edition, Premium, Touring; 2.4L
• 2023 Subaru Ascent, Note: Base, Limited, Onyx Edition, Onyx Edition Limited, Premium, Touring; 2.4L
• 2024 Subaru Ascent, Note: Base, Limited, Onyx Edition, Onyx Edition Limited, Premium, Touring; 2.4L
• 2025 Subaru Ascent, Note: Bronze Edition, Limited, Onyx Edition, Onyx Edition Touring, Premium, Touring; 2.4L
• 2018 Subaru Crosstrek, Note: Base, Limited, Premium; 2.0L

FAQ

Will this fit my vehicle?
Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase.

What part number is this?
The listed part number is 77-16801.

Is this product designed for direct replacement?
Yes. This product is intended to match compatible vehicle applications listed in the fitment section.

Should I confirm fitment before ordering?
Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering.

Common Searches

• Sprint Booster Power Converter for Subaru Ascent
• 77-16801 fitment
• aFe Power Sprint Booster Power Converter
• 2008 Subaru Ascent Sprint Booster Power Converter

Vehicle Fitment Table